Schoop twisted his lower torso awkwardly in a rundown while playing second base Friday night. He remained in the game and was fine, but it was a different story Saturday morning, Orioles manager Buck Showalter said. Schoop missed several weeks this season because of a stress fracture in his back, and the Orioles want to make sure his soreness is not related to that injury.

“He actually came in with multiple symptoms, which makes them think that there are things they need to check out, structurally, back-related,” Showalter said. “Just try to rule everything out before we get into the offseason.”

Schoop was to be examined by team doctor John Wilckens today and was not available for Saturday night’s game against the Boston Red Sox. The club hopes their 21-year-old infielder prospect still will be able to play in the Arizona Fall League.

Schoop isn’t the only Oriole dealing with an injury: Outfielder Michael Morse has been experiencing pain in his left wrist, effectively ending his season. He will head to Sarasota, Fla., to see hand specialist Brian Schofield, then get a second opinion at the Mayo Clinic before deciding whether to have surgery.

Morse, who was 3-for-29 (.103 batting average) since coming over from Seattle in a late August trade, told the Orioles about the wrist pain three or four days ago,Showalter said.

When asked if it was a lingering injury, Showalter said, “Evidently, 'cause he just kind of let us in on it.”

Manny Machado, who tore his medial patellofemoral ligament in his left knee Monday, will leave the team Sunday afternoon for a flight to Florida. He will see Dr. James Andrews on Monday in Gulf Breeze, Fla., for a second opinion. The initial prognosis was that he would need six to eight weeks of rest.

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